#797, Turnout and Crossover Ties HO scale: For Turnouts and Crossovers these ties have the same heighth and width (HO prototypical 4 inches by 8 inches) but 27 scale feet long. The instruction sheet includes templates for laying #4, #6, and #8 Turnouts and Crossovers in Standard Gauge and #6 in Narrow Gauge. 250 ties per bag and there are enough to build five to six average turnouts.